Headlight



H. H. TRAVIS.

HEADLlGHT. APPLICATION HLED MAR.1.2, 1919.

Patented Apr. 27, 1920.

I attozmzq UNITED STATES PATENT, Enron.

HOMER H. TRAVIS, or oonnnnns, onro.

HEADLIGHT.

Specification of Letters Patent. Patented Apr, 2'7, 1920,

Application filed March 12, 1919. Serial No. 282,068.

To all whom it may concern:

Be it known that I HOMER H. Tnnvrs, a citizen of the United States, resldmg at Columbus, in the county of Franklin and" special structure of headlight in order to use the improved dimmer in connection therewith.

Another object of the invention is to so construct the dimmer that the sliding lamp carrier may have a rotary movement in the supporting sleeve as the carrier moves longitudinally therein thus permitting the carrier to move easily but at the same time preventing the carrier from accidentally moving to the inoperative or operative position.

Another object of the invention is to so construct this dimmer that it will be simple in construction but at the same time very efiicient in operation and strong and durable.

Another object of the invention is to so construct this dimmer that a lug forming a guiding lug to impart rotary movement to the lamp carriage may in addition provide a conduit for leading a power wire through the supporting sleeve.

This invention is illustrated in the accompanying drawings wherein,

Figure 1 is a view showing the improved headlight in section with the dimmer associated therewith and the lamp in an extended position,

Fig. 2 is a transverse sectional view taken along the line 22 of Fig. 1, and I Fig. 3 is a longitudinal sectional view taken along the line 33 of Fig. 1 with a lamp drawn back into the sleeve.

This headlight is provided with a casing 1 having a lens ring 2 and being further provided with the usual reflector 3 in the center of which there is provided an opening 4 through which the sleeve 5 extends. This sleeve 5 extends through the opening 4 and is positioned partially in the space between the casing 1 and the reflector 3 and partially extends in front of the reflector as clearly shown in Fig. 1 thus permitting the sleeve to have the proper length and at the same time permitting the sleeve to be used in connection with a headlight having a conventional construction and making it unnecessary to provide additional length of space between the casing 1 and reflector 3.

The carriage or carrier 6 is in the form of a cylinder having one end provided with a head 7 in which is mounted the socket 8 having a conventional construction and holding the bulb 9. The power wlre 10 which 1s 1n operative connection with the socket as shown in Fig. 3 extends through a hollow arm 11 which arm 11 extends through a slot 12 out in the sleeve 5 and extending longitudinally thereof but in a spiral track.

By having this slot 12 cut in a spiral track it will be readily seen that in order to permit the carriage 6 to move longitudinally of the sleeve 5 it must rotate in the sleeve. As the carriage may move with greater ease through the sleeve if it has a rotary movement it will be easier to operate this device than would be the case if the slot extended longitudinally of the sleeve.

In order to operate this dimmer there has been provided an actuating rod or wire 13 which wire extends through a flexible conduit 14L into thecasing l and has its inner end connected with the hollow arm 11 by means of the clamp 15. The operating rod or heavy wire 13 extends to a convenient point where it may be easily reached by the driver of the automobile and when moved causes the carriage to move longitudinally in the sleeve according to the direction in which the rod is moved thus causing the lamp 9 to be moved into the sleeve as shown in Fig. 3 or out of the sleeve to the extended position shown in Fig. 1.

hen in use, the dimmer will be installed as shown in Fig. 1 and when driving along roads in the country or suburbs where it is permitted to have the headlights brilliant and it is desirable to have the roadway ahead well illuminated the carriage 6 will be extended to the position shown in Fig. 1 or to a greater extent if a brighter light is desired. WVhen in this position the lamp will be extended out of the forward end of the sleeve 5 thus placing the lamp in front of the reflector 3 so that the headlights may throw a brilliant stream of light ahead of the car. lVhen it is desired to have a dim light the operating rod or heavy wire 13 will be drawn to move the carriage 6 toward the inner end of the sleeve 5 and the lamp will be drawn into the sleeve to the 7 position shown in Fig. 3 where it may show a dim light. It will be readily seen that when in this position the reflector 3 has no action on the lamp and thus only a dim light will be shown. that due to this construction the lamp may we moved to the proper position to focus at the right point and when adjusted vibration of the car will not tend to move the carriage (3. As previously explained, the construction permits the carriage to be moved easily through the sleeve when desired and the construction imparts a rotary as well as sliding movement to the carriage.

\Vhat is claimed is:

1. The combination with a headlight having a casing and a reflector spaced therefrom, of a helically slotted sleeve mounted between the casing and the reflector, a lamp carriage slidably mounted in said sleeve, an

electric conduit arm on said carriage extending through the helical slot in said sleeve and means engaging said arm for impartlng movement to said carriage to dim the action of a lamp.

2. In combination with a headlight havn It will be further noted ing a casing and a reflector spaced therefrom, oi a helically slotted sleeve mounted between the casing and reflector and extending beyond the surface of the reflector, a lamp carriage slidably mounted in said sleeve, a hollow arm on said carriage eX- tending through the helical slot in said sleeve, a power wire extending through said arm for operating a lamp, and a rod engaging said hollow arm for imparting movement tosaid carriage to dim the action of the lamp.

3. The combination with a headlight having a casing, and a reflector spaced therefrom, of an elongated cylindrical helically slotted sleeve mounted between the casing and reflector and extending beyond the surface of the reflector, a lamp carriage slidably mounted in the sleeve and having an opening formed in the sides thereof, a hollow arm on the carriage communicating with the interior thereof through the opening and extending through the helical slot in said sleeve, a power wire extending through said arm for energizing a lamp, and a rod engaging said hollow arm for imparting movement to said carriage to dim the action of the lamp.

In testimony whereof, I aflix my signatu re hereto.

HOMER H. TRAVIS. 

